US4291730A - Double-lift open-shed jacquard machine - Google Patents

Double-lift open-shed jacquard machine Download PDF

Info

Publication number
US4291730A
US4291730A US06/088,382 US8838279A US4291730A US 4291730 A US4291730 A US 4291730A US 8838279 A US8838279 A US 8838279A US 4291730 A US4291730 A US 4291730A
Authority
US
United States
Prior art keywords
lifters
main
control
jacquard machine
hook plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/088,382
Other languages
English (en)
Inventor
Hubert Kremer
Heinz Konigs
Otto Gutmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MASCHINENFABRIK CARL SANGS AG
Original Assignee
MASCHINENFABRIK CARL SANGS AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MASCHINENFABRIK CARL SANGS AG filed Critical MASCHINENFABRIK CARL SANGS AG
Application granted granted Critical
Publication of US4291730A publication Critical patent/US4291730A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/06—Double-lift jacquards
    • D03C3/08—Double-lift jacquards of open-shed type

Definitions

  • the present invention relates to a double-lift open-shed Jacquard machine having two griff boxes which are movable in opposite directions to each other and pass each other, and having lifters controllable by main needles arranged transverse to the knives of the griff boxes, which lifters have two main noses associated with the movable knives and one holding-up nose associated with a fixed upper-shed knife.
  • Double-lift open-shed Jacquard machines having lifters developed with two legs are known. These lifters are provided with a main nose at the upper end of each leg and furthermore a holding-up nose on one leg. The main noses are associated with the crossing knives of the two griff boxes. These known lifters with the two long spring legs enter into undesired vibrations at high speeds of revolution so that the lifters which have been moved downward into the lower shed by one knife can come into engagement at their free unattached main nose with a knife of the ascending griff box. Errors in weave result therefrom.
  • the object of the present invention is to create a double-lift open-shed Jacquard machine with crossing griff boxes and with knives extending in traditional manner transverse to the main needles, in which the control movements of the main needles and of the lifters are reduced in order to obtain an increase in output by a favorable leasing-in movement.
  • the knives consist of a carrier part and two hook plates fastened thereto which have control hooks bent off in the direction towards the main noses of the lifters and arranged spaced apart from each other, that the shaping of the hook plates and their hooks permits in the control direction of the main needles the passage of the lifters up into a plane lying between the control hooks of a knife, and that the shank of the lifters has per se known manner a flat rectangular cross section the greater moment of flexure of which lies in the control direction of the main needles.
  • a double-lift open-shed Jacquard machine developed in accordance with the invention the individual lifters are moved perpendicular to the longitudinal axis of the knives. Since at the same time a lifter which is not flexible in the control direction of the main needles, i.e. is rigid, is employed, their main noses and in particular also the knives must be so developed that they can engage one beneath the other when the lifter is to change its shed position and can slide past each other when the lifter is to remain in its basic position which corresponds to the lower-shed position.
  • the shaping of the hook plates which lie in front in the control direction and of their hooks is so selected that the main noses of the associated lifters and/or the upper end of the lifters can be swung through recesses into a plane which extends between the control hooks of a knife and is therefore parallel to the longitudinal direction of the knife.
  • the advantage is obtained of developing the lifters with flexural stiffness in the control direction, so that they can no longer enter into vibration even at high speeds of rotation.
  • control hooks and/or the main noses can be beveled so that their overlap increases upon the driving of a lifter.
  • the control hooks and the main noses preferably extend parallel to the longitudinal direction of the knives. Since the remaining distance between the control hooks of adjacent knives is very small, notches are provided also in the hook plates which are in the rear in the direction of control, the shanks of the lifters lying within said notches.
  • FIGS. 1 and 2 show a first embodiment in side view and in front view
  • FIGS. 3 and 4 show a second embodiment in side view and in front view
  • FIGS. 5 and 6 show a third embodiment in front view and in side view
  • FIGS. 7 and 8 show a fourth embodiment in front view and in side view
  • FIGS. 9 and 10 show a fifth embodiment in front view and in side view
  • FIG. 11 shows diagrammatically the development of a double-lift open-shed Jacquard machine having five lifters in different control positions, seen in side view.
  • a knife 1 which consists of a carrier part 2 and two hook plates 3 and 4 fastened to it at a distance from each other, said plates having control hooks 5 and 6 which are bent obliquely upward in opposite directions at their free lower ends.
  • the hook plate 3 which is arranged in front as seen in the control direction is provided, between two control hooks 5, with an opening 7 for the passage of the upper end of a lifter 8.
  • the lifter 8 has a shank 9 of flat rectangular cross section whose larger width lies parallel to the main needle 10 and transverse to the longitudinal direction of the knife 1.
  • main hoses or projections 12 and 13 which protrude at a right angle are arranged at different heights, cooperating with the control hooks 5 and 6.
  • a holding-up nose or projection 14 is fastened to the shank 9 of the lifter 8, said nose cooperating with a fixed upper-shed knife 15.
  • a harness cord 16 is attached to the lower end of the lifter 8, said cord being conducted through a lifter bottom 17.
  • the upper end of the lifter 8 which bears the main nose 12 can pass, upon a corresponding control movement, through the opening 7 in the hook plate 3 so that it lies outside the path of movement of the control hook 5 between the two hook plates 3 and 4. Furthermore, the shank 9 of the lifter 8 can enter into notches 18 between the control hooks 6 on the hook plate 4.
  • the lifters 8 are guided between bars 19 of a grid, said bars being arranged parallel to the main needles 10. Furthermore, between the lifters 8 there are provided bars 20 of a grid which serve as stop for the vertical alignment of the lifters when the latter are not controlled by the main needles 10.
  • FIGS. 3 and 4 corresponds extensively to the embodiment described above, with the sole difference that the two hook plates 3' and 4' are in this case arranged on one side of the carrier part 2.
  • the control hook 5' is bent upwards on its inside so that an opening 7' is produced.
  • the hook plates 3" and 4" are provided with control hooks 5" and 6" which are bent off in longitudinal direction and furthermore transversely to the longitudinal direction of the main needles 10.
  • These control hooks 5" and 6" cooperate with the lifters 8 which at the upper end of this shank 9 have a T-shaped head with main noses or projections 12" and 13" bent off transversely to the longitudinal direction of the main needles 10.
  • the head of the lifters 8 can be conducted into an opening 7 between two control hooks 5" or 6" while in the embodiment shown in FIGS. 7 and 8 the control hook 5" is extended to such an extent that an opening 7" remains between it and the hook plate 3", the main nose 12" being guided through said opening.
  • control hooks 5'" and 6'" are punched out of the hook plates 3'" and 4'", bent laterally out of the plane of the plate, and notched in V-shape at the upper end so that control hooks which are bent off transversely to the longitudinal direction of the main needles 10 are produced.
  • These control hooks cooperate with main noses or projections 12'" and 13'" which are also punched out of the shank 9 of the lifter 8 and bent out transversely to the longitudinal direction of the main needles 10.
  • the main nose 12'" can slide past the control hook 5'" on the inside when the corresponding lifter 8 is not to be moved out of its lower-shed position.
  • the lifters 8 are controlled in known manner by a pattern card 21 via a needle mechanism which consists of feeler needles 22, head needles 23 and the main needles 10, by means of a pressing grid 24 which is moved on a curve in the direction of the crossing double-ended arrows.
  • the corresponding feeler needle 22 has found a hole in the pattern card 21 so that the head needle 23 is not pushed off by the pressing grid 24 and therefore remains in position of rest together with the corresponding main needle 10.
  • the lifter 8 is thus not pushed off and it is therefore grasped by a lower knife 1 and pulled out of the lower shed position upwards into the upper shed position which corresponds to position B.
  • the feeler needle 22 of the lifter 8 which is in the upper-shed position has not found any hole in the pattern card 21 so that the lifter 8 is pressed off by the pressing grid 24 via the pre-needle mechanism and the holding-up nose 14 is thus pressed out of the range of the upper-shed knife 15.
  • the lifter 8 can thus be conducted into the lower-shed from position C with the knife 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US06/088,382 1978-10-27 1979-10-26 Double-lift open-shed jacquard machine Expired - Lifetime US4291730A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2846793A DE2846793B1 (de) 1978-10-27 1978-10-27 Doppelhub-Offenfach-Jacquardmaschine
DE2846793 1978-10-27

Publications (1)

Publication Number Publication Date
US4291730A true US4291730A (en) 1981-09-29

Family

ID=6053272

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/088,382 Expired - Lifetime US4291730A (en) 1978-10-27 1979-10-26 Double-lift open-shed jacquard machine

Country Status (7)

Country Link
US (1) US4291730A (it)
JP (1) JPS5920778B2 (it)
BR (1) BR7906914A (it)
DE (1) DE2846793B1 (it)
FR (1) FR2439835A1 (it)
IT (1) IT1124691B (it)
SU (1) SU1103801A3 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438786A (en) * 1981-02-20 1984-03-27 Maschinenfabrik Carl Zangs Aktiengesellschaft Knife construction for a double-lift open-shed Jacquard loom
US4949760A (en) * 1988-10-03 1990-08-21 Jeffrey Wilson Offset hook, balanced center shed dobby apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7927596U1 (de) * 1979-09-28 1980-01-03 Maschinenfabrik Carl Zangs Ag, 4150 Krefeld Platine und platinenboden fuer eine jacquardmaschine
JPS5938332B2 (ja) * 1980-04-03 1984-09-17 日下部株式会社 ジヤガ−ド機
DE3103729C2 (de) * 1981-02-04 1983-03-17 Maschinenfabrik Carl Zangs Ag, 4150 Krefeld Doppelhub-Offenfach-Jacquardmaschine
IT1201101B (it) * 1983-08-12 1989-01-27 Eimtessile Fabbrica Italiana M Arpino ad asta unica per macchine d'armatura jacquard con esso realizzata
TR25799A (tr) * 1991-01-18 1993-09-01 Oskar Schleicher Union Carbide Bukleli dokuma im bozulmayla poliamidlerin nispi vetilen kopolimerl bozulmayla poliamidlerin nispi viskozitesinin arttirilmasi icin bir islem iskozitesinin arttirilmasi icin bir islem
DE4101778C1 (it) * 1991-01-18 1992-04-02 Fa. Oskar Schleicher, 4050 Moenchengladbach, De

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022251A (en) * 1975-01-31 1977-05-10 Sulzer Brothers Limited Jacquard machine having reciprocating griffes and lifting wires
US4023598A (en) * 1975-01-31 1977-05-17 Sulzer Brothers Limited Jacquard lifting wire
US4116242A (en) * 1975-12-19 1978-09-26 Sulzer Brothers Limited Jacquard machine having means for controlling jacquard needle motion
US4867363A (en) * 1985-12-13 1989-09-19 Gerber Scientific Products, Inc. Web loading and feeding system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582591C (de) * 1931-10-14 1933-08-17 Hermann Einsel Doppelhub-Offenfach-Jacquardmaschine
DE2455035C2 (de) * 1972-04-11 1983-07-07 Verdol S.A., 69300 Caluire, Rhone Doppelthebende Jacquardmaschine
FR2179655B1 (it) * 1972-04-11 1976-06-11 Verdol Sa
CH610942A5 (it) * 1975-07-25 1979-05-15 Grosse Webereimaschinen Gmbh

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022251A (en) * 1975-01-31 1977-05-10 Sulzer Brothers Limited Jacquard machine having reciprocating griffes and lifting wires
US4023598A (en) * 1975-01-31 1977-05-17 Sulzer Brothers Limited Jacquard lifting wire
US4116242A (en) * 1975-12-19 1978-09-26 Sulzer Brothers Limited Jacquard machine having means for controlling jacquard needle motion
US4867363A (en) * 1985-12-13 1989-09-19 Gerber Scientific Products, Inc. Web loading and feeding system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438786A (en) * 1981-02-20 1984-03-27 Maschinenfabrik Carl Zangs Aktiengesellschaft Knife construction for a double-lift open-shed Jacquard loom
US4949760A (en) * 1988-10-03 1990-08-21 Jeffrey Wilson Offset hook, balanced center shed dobby apparatus

Also Published As

Publication number Publication date
FR2439835B1 (it) 1983-11-18
FR2439835A1 (fr) 1980-05-23
BR7906914A (pt) 1980-06-17
JPS5562239A (en) 1980-05-10
IT7926848A0 (it) 1979-10-26
SU1103801A3 (ru) 1984-07-15
DE2846793B1 (de) 1980-04-17
IT1124691B (it) 1986-05-14
JPS5920778B2 (ja) 1984-05-15

Similar Documents

Publication Publication Date Title
US4593723A (en) Heald control apparatus
US4291730A (en) Double-lift open-shed jacquard machine
US4858654A (en) Pulley-block drive open shed jacquard machine
US4756340A (en) Jacquared double plush fabric
US4022251A (en) Jacquard machine having reciprocating griffes and lifting wires
US5743308A (en) Double lift weave system
US3938560A (en) Apparatus for the mechanical operation of thread or yarn guides
US20070267083A1 (en) Shed-forming mechanism, a loom fitted with such a mechanism, and a method of selecting moving hooks in such a mechanism
US8770235B2 (en) Reed and weaving machine for weaving pattern formation in woven fabrics with additional pattern effects
US7168454B2 (en) Harness device for a weaving machine
US3186439A (en) Jacquard looms
US3967652A (en) Spring hook for the harness pull of a double-lift open-shed jacquard machine
US4715408A (en) Gauze or leno harness for weaving machines
US4296782A (en) Double-lift open-shed Jacquard machine
US6328076B1 (en) Thread controlling device with control element supported independently from the lifting device
US4067363A (en) Shedding device for weaving looms, in particular for double-lift open-shed jacquard machines
US4418725A (en) Hook for Jacquard machine
CA1048901A (en) Selvage forming device for a weaving loom
EP0678602A1 (en) Jacquard apparatus
US2058101A (en) Pattern control mechanism
US4041987A (en) Jacquard machine equipped with lifting wires and stationary arresting blades
GB2189513A (en) Pile yarn selection in carpet looms
US5782272A (en) Piezoelectric shed selecting device
SU1083916A3 (ru) Двухподъемна жаккардова машина открытото зева дл ткацкого станка
US1766835A (en) Loom dobby

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED CASE